Embossing-calender.



No. 797,693. PATENTED AUG. 22, 1905. J. KLEINEWEFERS.

EMBOSSING GALENDER.

APPLICATION FILED 0CT.12,1901.

2 SHEET$SHEBT 1 No. 797,693. PATENTED AUG. 22, 1905.

J.. KLBINEWEFERS.

EMBOSSING CALENDER.

APPLICATION FILED OCT. 12,1901.

2 SHEETSSHBET 2.

UNITED STATES PATENT OFFICE,

JOHANNES KLEINEWEFERS, OF OREFELD, GERMANY, ASSIGNOR TO J OH. KLEINEWEFERS SOHNE, OF CREFELD, GERMANY, A CORPORATION OF GERMANY.

ElVlBOSSlNG-CALENDER.

Specification of Letters Patent.

Patented Aug. 22, 1905.

Application filed October 12, 1901. Serial No. 78,506.

To add whom it may concern:

Be it known that I, J OHANNES KLEINEWE- FERS, manufacturer, a subject of the King of Prussia, German Emperor, residing in the city of Crefeld, Kingdom of Prussia, German Empire, have invented certain new and useful Improvements in Embossing-Calenders, of which the following is a specification.

This invention has reference to embossingcalenders of the kind in which each series of rollers is composed of an engraved metal roller and a corresponding counter-roller provided with a coating of paper, cotton, or the like, and it is intended to obviate the difliculties incident upon thegreat pressure which these devices were exposed to during operation.

The invention is shown by way of example on the accompanying drawings, Figure 1 being an end view, and Fig. 2 a front view, of my improved stack of calender-rollers.

In calenders of this kind it is necessary to give great strength to the lower counterroller, so as to avoid its being bent by the great pressure to which the device is exposed during the operation of calendering. It is important to avoid any, even the slightest, bending of this counter-roller, inasmuch as the pressure being obviously less in the center of such bent rollers than at the sides the efliciency of the work is diminished, for in order to obtain thehighest efliciency and sharp and perfect embossing the pressure should correspond to engraved parts of the counterroller upon the whole extent of the latter, a separate counter-roller becoming necessary, therefore, for each engraved roller. The costs of manufacture of paper-rollers the diameter of which is large enough to prevent any permanent bending are, however, comparatively high. My invention provides means to reduce these expenses. With this end in view I combine a metal roller a and a counter-roller 5, having the usual coating of paper or eq uivalent material, with another supporting-roller 0, arranged below the paper-roller and the shafts or pivot of which is strong enough to resist any bending tendency of the system.

This roller 0 is covered with some elastic material-rubber, for instance. By the employment of this additional roller, which may be applied to any system of embossing-calenders, I am enabled to considerably reduce the diameter of the paper-roller I) as compared with the counter-rollers in use before my invention. Inasmuch as a separate counter or paper roller is necessary for each engraved roller in the stack, it is obvious that by my invention and by reducing the diameters of all these counter-rollers in the stack of calenders a very considerable economy is effected by the addition of but one bottom roller. This additional bottom roller 0 must be provided with an elastic surface coating, inasmuch as the grooved parts forming the corresponding negative of the embossed roller would be destroyed by the pressure upon the paper-roller. Above the engraved roller of these calenders I may also arrange another roller, with a covering of paper or other material, which is not shown in the drawings, so as to take oif the direct pressure from the journals of the engraved roller and to prevent any bonding of the same. The arrangement of a top roller like the roller referred to also contributes to a reduction of the diameter of the engraved rollers, which are rather expensive.

What I claim, and desire to secure by Letters Patent of the United States, is

In embossing-calenders, the combination with a framework and an emlmssing-roller and a corresponding counter-roller journaled in said framework, of a supporting and prossure-sustaining roller of larger diameter than the other roilers journaled in the framework below said counter-roller and adjoining the same and an elastic covering on said supporting bottom roller.

In witness whereof I have hereunto signed my name in the presence of two subscribing witnesses.

J OHS. KLEI NEW EFERS. Witnesses:

J os. THEISEN, J1-1. PANNns. 

